A fix to issue #86: Adding gnuft condition as well as removing unit_investLP...
A fix to issue #86: Adding gnuft condition as well as removing unit_investLP and unit_investMIP conditions and p_unit(unit, 'unitCount') from q_inertiaMin. Using p_unit(unit, 'unitCount') causes division by zero problems for units with investment variables and without online variables. Adding gnuft condition to five other equations as well: q_instantaneousShareMax, q_capacityMargin, q_energyShareMax, q_energyShareMin and q_minCons. Using unit aggregation and these equations without the gnuft condition might have caused problems.